Weather-strip.



R. B. SWART.

WEATHER STRIP. APPLICATION FILED 001 .22, 1910.

1,017,340. Patented Feb. 13,1912.

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UTED S ATENT OFFICE."

ROBERT E. SWART, OF DETROIT, MICHIGAN, ASSIGNOR TO AMERICAN METAL SCREENAND WEATHERSTRIP COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OFMICHIGAN.

WEATHER-STRIP.

Specification of Letters Patent.

' Patented Feb. 13, 1912.

Application filed. October 22, 1910. Serial No. 588,507. I

To all whom it may concern:

Be it known that 1, ROBERT B. SWART, a citizen of the United States,residing at De troit, county of Wayne, State of Michigan, have inventeda certain new and useful Improvement in lVeather-Strips, and declare thefollowing to be a full, clear, and exact description of the same, suchas will enable others skilled in the art to which it pertains to makeand use the same, reference being had to the accompanying drawings,which form a part of this specification.

This invention relates to weather strips.

It has for its object an improved strip adapted to be used in connectionwith a sliding window sash for the purpose of producing a tight jointadapted to exclude the wind, prevent the sash from rattling and the rainor sleet from driving by the edges of the sash.

In the drawings :-Figure 1, is a front elevation of a window sash and awindow frame. Fig. 2, is a perspective showing a strip and the groove ofthe window sash in which the strip engages. The weather strip shown inthis drawing is the one applied to the top half of the window. Fig. 3,shows a strip applied to the bottom half of the window. Fig. 4c, ishorizontal through the meeting rails and a cross section showing boththe top and bottom sashes with properly applied weather strips.

The weather strip which is placed vertically at the side of the windowconsists essentially of a strip of thin metal 1, bent to form an angledstrip with the flange 2, and with the outer edge of the flange 2 bentback on itself, and with the extreme edge 3 engag ing along the cornerof the angle between the web 1 and the flange 2. At the end a holdinglug 4 is bent outward at right angles to the web 1, and is arranged toengage between the end of the window stop 5 and the window frame. Thestrip shown in Fig. 3, which is intended to be used with the bottomsash, is formed with the holding lug 4 at the bottom end adapted toengage under the window stop The stop 5 is adapted to be forced into achannel which is cut for it in the window frame.

The strip shown in Fig. 2, which is intended to be used with the uppersash of the window, is provided with a holding lug t that is intended toengage over the upper cross strip; in either case the web 1 engagesbetween the stop and the wall of the groove which is cut in the side ofthe frame 7 to receive the stop and is secured in place by the stop andby the sash, and is held from rising or falling as the case may be bythe lugs; the lug 4t engaging under the stop 5 and preventing theweather strip from rising, and the lug P engaging over the top of thecross strip 9 and preventing the Weather strip from falling. The doubledflange part 2 and 2 engages in a groove 8 and 8 cut in the side of thesash. Except for the fastenings already mentioned no fastenings areused, neither nails, tacks or cement. The interengagement of the weatherstrip with the sash and with the window frame in the way described holdsthe strip securely in place and allows it to yield if the sash shrinks,or if the frame shrinks so that the fit between the sash and the framebecomes loose, or if, owing to damp weather, the parts swell, theweather strip accommodates itself to this condition.

What I claim is In combination with a window frame having the severalvertical and horizontal frame portions, an upper horizontal stripattached to the upper frame member, and said frame also provided with avertical ehannelfin the side frame portion, a middle stop engaging insaid channel, outside and inside stops on either side of said middlestop, an upper sash slidable in the space between the outside and middlestop and provided with a vertical groove in its inside face, a lowersash slidable between the inside stop and middle stop and provided witha vertical groove in its outside face, a pair of nailless, anti-creep,weather strips, the one comprising a web having an integral lug at itsupper end adapted to be bent at a right angle and tightly wedged betweenthe upper frame member and the upper horizontal strip, and a webextending from the top of the frame to below the middle of said middlestop facing the outside thereof, said web being wedged between the wallof the channel and the middle stop and folded in the form of a doubleflange engaging spreadingly in the vertical groove of the upper sash,and the other strip comprising a web having an integral lug at thebottom folded at a right angle and engaging between the bottom of themiddle stop and the lower frame member, the said web facing the insideof said middle stop between the bottom and a point In testimony whereof,I sign this speoificaabove the center thereof, and wedged betion in thepresence of two witnesses. tween the wall of said channel and said middle stop, and an integral flange, doubled ROBERT SW'ART' upon itself,engaging spreadingly within the Witnesses: groove of the said lowersash, substantially CHARLES F. BURTON, as described. VIRGINIA O. SPRATT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. G.

